Brewer’s Yeast for Lactation – Does It Boost Milk Supply?

Learn how brewer’s yeast can improve milk production, support postpartum health, and provide key nutrients for breastfeeding mothers.

By Tian C | Updated: 18/04/2026

Medically Reviewed By

Ruchita Mehra (Lactation Counselor)

Image Credit : AI Generated Image

Every child needs breastfeeding in the initial stages of growth, and every mother is willing to make several adjustments to ensure her child receives essential nutrients through breast milk. However, issues with milk supply can raise many concerns in a nursing mother’s mind, often leading her to explore different remedies to boost production. One such option that is often recommended is brewer’s yeast for lactation, known for its potential to support milk supply. However, you may still have questions about its safety, how long it should be taken, and its overall effectiveness. In this article, we aim to address all your concerns about brewer’s yeast and breastfeeding. Read on to learn more!

What Is Brewer’s Yeast?

Brewer’s yeast is made from a one-celled fungus called Saccharomyces cerevisiae. It is commonly used in the production of beer, cookies, and bread. However, it is also used as a nutritional supplement by many. It is a rich source of chromium, B-complex vitamins, protein, selenium, and trace minerals (1) (2).

Is It Safe for Breastfeeding Mothers?

Yes, brewer’s yeast is safe for breastfeeding mothers as long as they are not allergic to the contents (3).

Does Brewer’s Yeast Help With Milk Production?

When it comes to getting to the root of breast milk supply issues, several factors are needed to be explored. Determining the root of the problem and seeking professional guidance through a lactation consultant is highly recommended, especially to know whether or not it is perceived low breast milk supply. Also, there is not enough evidence that brewer’s yeast is an effective galactagogue. Although it is considered safe for nursing mothers to consume brewer’s yeast through foods like bread, cookies, etc., in moderate quantities, it doesn’t guarantee that breast milk supply issues will be treated (4).

How Long Does It Take to Increase Milk Supply?

Although there is not much scientific proof, anecdotal evidence suggests that brewer’s yeast can increase your milk supply after a couple of days of usage. However, it is quite possible that you may not see any change at all.

Ideal Dosage of Brewer’s Yeast During Lactation

The most common dosage of Brewer’s yeast is 3 tablespoons per day. Brewer’s yeast while breastfeeding can be beneficial if taken regularly.

What Is the Best Way to Take Brewer’s Yeast?

The best way to take brewer’s yeast is to add it to water, juices, or shakes.

Health Benefits of Brewer’s Yeast

Brewer’s yeast benefits are many. It is full of important nutrients and vitamins which contribute to a person’s immunity. It is an excellent source of protein and is known to improve skin health.

Side Effects of Brewer’s Yeast for Breastfeeding

Brewer’s yeast, as a nutritional supplement, is considered to be safe for breastfeeding women. It is generally well–tolerated by young moms and little infants as it passes into the baby’s body through the breastmilk.

You must always find out about the potentially dangerous drug interactions of any supplement to prevent the side effects. For this, you must consult your doctor or the lactation consultant to know about the medication, supplement or herb that you are going to consume. Though the side effects of this supplement are mild, they include the following:

1. Yeast Infection in Vagina

Brewer’s yeast does not always have the same effect on everybody who consumes it. If you happen to be prone to yeast infections, it is advisable to avoid consuming it.

2. Hypoglycemia Complications or Diabetes

Brewer’s yeast sometimes lowers the blood sugar to a dangerous level, and sometimes it interferes with the medications that you may be taking. You must consult your doctor if you are diagnosed with hypoglycemia or diabetes.

3. Diarrhoea, Abdominal upset or Gas Formation

If you or your child develops some colic-like symptoms or feels irritable, you should instantly decide to reduce the intake of brewer’s yeast. If anyone of you has any stomach issues or suffer from diarrhoea, you must stop taking it altogether (3).

When Should Breastfeeding Mothers Avoid Taking Brewer’s Yeast?

Mothers should avoid brewer’s yeast if they are allergic to yeast or have diabetes.

Simple and Tasty Brewer’s Yeast Breastfeeding Recipes

Here are some simple and tasty recipes with Brewer’s yeast for breastfeeding:

1. Brownies

Indulge your sweet cravings with these rich and fudgy brownies, enhanced with brewer’s yeast for an added lactation boost.

Ingredients

1 box of your favourite brownie mix
1 egg
4 tbsp debittered brewer’s yeast
2 tbsp flaxseed
Water/Oil according to brownie mix instructions
1 extra tbsp water
1 cup chocolate chips (optional)

Instructions

1. Preheat your oven as directed on the brownie mix box and grease a baking pan.

2. In a large bowl, combine the brownie mix, brewer’s yeast, and flaxseed.

3. In a separate bowl, whisk together the egg, oil, and water (add the extra tablespoon of water to balance the dry ingredients).

4. Gradually mix the wet ingredients into the dry mixture until you get a smooth batter.

5. Fold in chocolate chips if using.

6. Pour the batter into the prepared pan and spread evenly.

7. Bake according to the package instructions. Let cool before cutting into squares.

2. Triple Berry Waffles

Start your day with these wholesome and delicious waffles packed with berries and lactation-friendly ingredients.

Ingredients

Waffle mix
Berries of your choice
Flax seeds
Brewer’s Yeast
Oats

Instructions

1. Preheat your waffle maker according to its instructions.

2. Prepare the waffle batter as directed on the mix package.

3. Stir in a spoonful of brewer’s yeast, flax seeds, and oats into the batter for added nutrition.

4. Pour the batter into the waffle maker and cook until golden and crisp.

5. Remove and top with fresh berries before serving.

3. Green Smoothie

This refreshing green smoothie is a quick and nutritious way to include brewer’s yeast in your daily routine.

Ingredients

Spinach
Banana
Brewer’s Yeast
Blueberries

Instructions

1. Add spinach, banana, blueberries, and a spoonful of Brewer’s yeast into a blender.

2. Pour in some water or milk to help blend smoothly.

3. Blend until the mixture is creamy and lump-free.

4. Taste and adjust consistency if needed, then serve chilled.

4. Protein Shake

Perfect for busy moms, this protein-packed shake is an easy and filling option to support your energy and milk supply.

Ingredients

Protein powder
Milk or water
Brewer’s yeast

Instructions

1. Add protein powder, brewer’s yeast, and milk or water to a blender or shaker bottle.

2. Blend or shake well until fully combined and smooth.

3. Pour into a glass and add your favourite toppings like nuts or seeds if desired.

4. Enjoy immediately for best taste and texture.

FAQs

1. Can Brewer’s yeast cause gas in a baby?

Yes, it is possible for Brewer’s Yeast to cause gas in your baby.

2. Can you lose weight when consuming Brewer’s yeast during breastfeeding?

No, it is not certain whether brewer’s yeast can cause weight loss during breastfeeding.

3. What are other natural ways to boost milk supply along with Brewer’s yeast?

In addition to using Brewer’s yeast and lactation support strategies, mothers can focus on staying hydrated, eating a balanced diet, feeding frequently, and getting enough rest. Foods like oats, fenugreek, and flaxseed are also commonly used to support lactation.

4. What is the best time to consume Brewer’s yeast for nursing?

There is no specific “best” time, but many mothers prefer taking it in the morning or spreading it throughout the day in meals. Consistency matters more than timing when it comes to seeing potential benefits.

5. Is brewer’s yeast the same as baking yeast?

No, brewer’s yeast and baking yeast are different. Brewer’s yeast is deactivated and used as a nutritional supplement, while baking yeast is active and used to make dough rise. They should not be used interchangeably.

The connection between brewer’s yeast and milk production has made it a popular supplement among breastfeeding mothers. It is easily available in different forms, including powders, flakes, and brewer’s yeast pills for breastfeeding, making it convenient to include in the diet. However, mothers who are unsure about using this supplement should consult a medical practitioner before starting. Overall, it can be a beneficial addition, but it should only be consumed if it suits the body well.

Disclaimer: Everybody is different, and milk production depends on a lot of factors. Some women can’t make milk is a myth until they have gone through traumatic surgery on the breasts or any chemo sessions. There are certain galactagogues that can be consumed to increase breast milk, but it can’t be guaranteed as milk production also depends on a lot of different factors. Because there is no evidence of brewer’s yeast in milk supply availability, we cannot help but recommend you seek professional guidance from your doctor or a lactation consultant who can help dig deeper to examine the root cause.

Also Read:

Relactation
Low Breast Milk Supply
Lactating after Baby Loss
Recipes for Breastfeeding Mothers to Boost Lactation

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